A severe, life-threatening systemic Type 1 allergic response, occurring most often due to an injected antigen, is known as ________.
A) Autoimmunity
B) Atopy
C) Hemolytic disease
D) Anaphylaxis
D) Anaphylaxis
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The electrons of an atom are
A. always in full orbitals. B. always equal to the number of protons. C. used to determine the atomic number. D. carrying a positive charge. E. used to determine the atomic weight.
The shape of the eyeball may affect ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following is an example of a positive feedback mechanism?
a. increase in body temperature when exposed to cold b. increased muscle contractions during labor c. decreased insulin production in response to low blood sugar d. increased respiration rate in response to decreased blood pH e. Both choices A and B are correct.
Which type of bond is responsible for holding two water molecules together, creating the properties of water?
A. hydrogen B. polar C. double covalent D. ionic E. covalent